Landische maschinenfabrik



March 9,1926. 1,576,172

w. BOSHECK SHUTTLE BOX SELECTING MECHANISM FOR SHUTTLE BOXES 'WITH MORE THAN TWO COMPARTMEN'I'S Filed March 19, 1924 Fig.4

Inventor:

literacy Patented Mar. 9, 1926.

UNITED STATES'PATENT OFFICE.

WALTH ER BOSHECK, PLAUEN, GERMANY, ASSIGNOR TO THE FIRM: VOGT- LANDISCHE MASGHINENFABRIK (VOBMALS: J. 0.. 3: II. DIETRICH) AK'IIENGE- SELLSCHAFT, or PLAUEN, GERMANY,

snurrnn-nox-snmcrme MECHANISM FOR SHUTTLE BOXES WITH MORE THAN TWO COMPARTMENTS- Application filed. March 19, 1924. Serial No. 700,239=}.

To all whom it may concern Be it known that I, WALTHER BOSHECK, a citizen of the German Republic, and a resi dent of Plauen, Saxony, Germany, have invented certain new and useful Improvements in Shuttle-Box-Selecting Mechanism for Shuttle Boxes with More Than Two Compartments, of which the following is a specification.

There are known change-box mechanisms for looms in which the change of the shuttle boxes is initiated by a catch-tooth shiftably arranged in a lifting wheel and adapted to be readjusted by a cam disk arrangedcoaxially with respect to said lifting wheel and adapted to be turned to and fro. With the known devices of this kind the forward and rearward movement of the cam disk is distributed over working phases, or upon a plurality of working cycles respectively, and every partial oscillation then correspondsto a corresponding re-adjustment of the shuttle box, in consequence whereof it is necessary to provide in the lifting wheel two separated catch-teeth which must be moved, firstly, always oppositely to one another, and sec-- ondly, both outwards and both inwards in alternation in certain intervals of time. This manner of operation necessitates the provision of two cam-disks constituting a double eccentric, but as this arrangement and combination of parts renders the device by far too complex, it has not been used practically. The same is true of another constructional form of the change-box in which the cam disk is carried round by the eccentric wheel at every partial rotation whereby it is rendered necessary to lock said disk atisaid wheel temporarily with the aid of springs; this entails fractures of the springs and diminishes the reliability of the service.

The object of my invention is to obviate the drawbacks above disclosed, and it attains that object in general by turning the cane disk back into its initial position after every e cle of the working phases, More especial y, said object is attained by certain arrangements and combinations of parts as described hereinafter and shown by way of example in the accompanying drawing. Turning the cam disk back into its initial position after every cycle can be effected very reliably by a simple system of levers which undergoes nearly no wear and tear and requires only a very small force for being adjusted, o1- re-adjusted respectively. Besides, two or more lifting eccentrics can be assembled in a very simple manner upon a common shaft with the appertaining change-position devices for the catch-teeth, in such a manner, that said eccentrics engage one another, whereby it is rendered possible to assemble an installation for change-boxes with 4: or 6 cells on an extraordinarily small space.

On the drawing Figure 1 is a side view of a loom provided with the improved shuttle change-box; Figure 2 is an axial section through the lifting wheel and Figure 3 a front view thereof; Figure 4 is a side view of the cam disk and Figure 5 a front view thereof; Figure 6 is a side view of the catch tooth and Figure 7 a front view thereof; Figure 8 is an axial section through a plurality of eccentrics engaging one another and Figure 9 is a sideview thereof, together with a bell-crank lever.

Referring to Figure 1 (right-hand half), 15 denotes the frame of the loom in which are supported upright arms 16 carried by pivots 15 located at their lower ends and carrying at their upper ends the lathe 16 which is combined with two shuttle boxes 17 of which one is arranged at one end or side, the other at the other end or side of said lathe. Each shuttle box has a plurality of cells. In the constructional form shown by way of example each shuttle box has four cells, and each is connected movably and adjustably by a guide-rod 18 and a connecting member 19 with the arm 20 of a bell= crank lever 20/21 carried by a pivot 20* fixed to the frame 15. The arm 21 of this lever connected with the arm of an Lil cal

:The arm other bell-crank lever 23/21 by means of a rod 22. This bell-crank lever is also carried on a pivot or bolt affixed in the frame of the machine. The arm 24 of the bell-crank lever 24 23 is connected with the crank-guide 9, the upper end of which is devised to form an eccentric ring 26 encompassing an eccentric 3 located loosely upon another eccentric 2 carried loosely by a horizontal shaft 12. The two eccentrics 2 and 3 can be adjusted relatively to'one another in four different positions, as will be described later on, and corresponding to these four positions the shuttle-box 17 will be lifted or lowered by the mechanism consisting of the crank-guide 9, the bell-crank lever 24/23, the rod 22, the bell-crank lever 21/20, the connecting member 19, and therod 18, that lifting and lowering taking place in such a measure that any one of the cells of the shuttle-box can be adjusted in proper height with respect to the path of the lathe.

The eccentric 2 is connected firmly with a disk 1 on one side thereof; the other side of cam disk 7 which is supported loosely rotatable upon the shaft 1201" upon the hub 6 of the disk 1 respectively. The inner shape of the cam disk 7 is accommodated to the member 8 in such a way that the sum of the radii (L-I-b lying in a straight line is always equal to the distance 0 of those points of the member 8 which are, or come, in con tact with said cam disk 7. The member 8 is conducted securely and reliably in this way by the cam disk 7 In order to render it possible to re-adjust the cam disk 7 in a secure and reliable man ner it'is connected rigidly with the disk-like guide-plate 28, which is connected by a p ot 29 with a rod 30, the other end of wnich is jointed to the arm 31 of the double-armed lever 31/33 which is supported on the pivot 32 inserted into the frame of the machine. 33 of this lever is subjected to the action of a spring 34 and carries the sinker which is hinged to it and can be readjusted by means .of a pull-wire inknown manner relatively to a drive -plate 37, determined bya jacquard-card. This plate is being reciprocated continually by known vmeans, and is also lifted and lowered by a feeler 38 supported on the r m of the disk 1 which is of known configuration.

The shaft 12 13 arranged parallelly to the uniforml rotatin drivin shaft 10 which forms anextension of the known crank shaft by means of which the lathe-carrying arms it time being. This is eli'ected by the teet 16 are swung to and fro. Secured to the shaft 10 are the toothed segments 11, the teeth of which can be caused to gear with the toothed segments 27. This takes place when the sinker has been re-adjusted by the jacquard device in such a manner that it is taken along by andwith the drive-plate 3. when this performs its next forward move ment, as simultaneously therewith the disk 28 is re-adjusted together with the cam disk 7, and the tooth 8 of the member 3 is being movedinto the path of the toothcc segment 11, in consequence whereof this latter when being further turned carries the tooth 8 along with it and gets into gear with one of the toothed segments 27, whereafter the drive plate 37 is moved rear-wards, whereas the lever 31/33 and, simultaneously therewith, the disk 28 and the cam disk are moved back into their position of rest, the tooth 8 being shoved during that t ne out of the path of the segment. This liming taken place, the segment 11 cannot cause any further turning of the disk 1 until the sinker has again been readjusted." jut when another rotation of the disk has been initiated it will be turned by the toothed segment only for an angle'of 180 whereby a corresponding re-adjust-ment of the shuttle-box 17 is effected.

In the same manner as already desu'ibedwith respect to the eccentric 2, also the eccentric 3 can be readjusted by a disk 5 which is, however, not rigidly connected with said eccentric as it must be shiftable radially relatively to the disk 5 corresponding to the ad: justments of the eccentric The eccentric 3 is provided, for this reason, with a pivot 1 engaging radial slot of the disk 5 so that the eccentric3 can be turned by the disk 5 in perfectly reliable manner. Corresponding to the disk 1 the disk 5 isprovided with two toothed segments 27, and between thes latter is provided another shiftable tooth 8 which is subjected to the action of cam disk T'supported loosely upon the hub of said dis: 5 and provided with a guide-plate 28. Also this plate is acted on by a jacquard device just as has been described with respect to the plate 28. i

As long as the shuttle-box is not to be re-adjusted, the eccentrics 2 and must be retained in that position they occupy the l: S

andS, as well by a fixing lever s ptiorted loosely upon the pivot 40 inserted into the frame of the machine; said ever is pressed against the toothed segment; 24 by means of a spring all. Two noses are provided at the upper part of the lever 39: they get at the proper time into the path of the tooth 8 and cause that this latter is moved into the space or gap existing betweensaid noses; the tooth is moved, however. out of that space or gap by means of the cam dish:

7 when the opposite tooth .is so shifted as to get into the path of the toothed segment 1. I claim: 1. A shuttle change-box mechanism for looms, comprising in combination, a liftingwheel, a member located .in said wheel and having two oppositely located teeth forming catch-teeth, and a cam disk adapted to be turned alternately forward and rearward, and means adapted to turn said cam-disk back into .its initial position after the completion of every cycle of operations, substantially as set forth.

A, shuttle change-box mechanism for looms, comprising, in combination, a lifting-wheel, a member located in said. wheel and having two oppositely located teeth forming catch-teeth, and a cam disk adapted to be turned alternately forward and rear ward; a jacquard-device, a sinker, and a driyeplate, these parts being combined in such a manner that the combination is adapted to turn said cam disk in correspondence with the pattern of said acquard device; and a spring so arranged as to be adapted to'turn said cam disk back into its initial position after the completion of every cycle of operations, substantially as set forth.

A shuttle change-box mechanism for looms, comprising in combination, a liftingwheel, a member located in said wheel and having two oppositely located teeth form ing catclnteeth, and a cam disk adapted to be turned alternately forward and rearward; a jacquard-device, a sinker, and a drive-plate, these parts being combined in such a manner that the combination is adapted to turn said cam disk in correspondence with the pattern of said jacquard device; a .ieeler arranged to contact with the rim of said lifting wheel and to lift and lower alternately said drive-plate after every scmirotation of the lifting wheel and to cause it to contact with said lifter only when another semi-rotation of the lifting wheel and another lie-adjustment of the box to take place, substantially as set forth.

41-. A shuttle change-box mechanism for looms, comprising, in combination with the shuttle-boxes, rods connected with the shut tle-boX cells and rods connected with said first-mentioned rods; eccentrics located upon a common shaft and being arranged one within the other and adapted to support and re-adjust the rods mentioned in the second place; wheels connected with said eccentrics and being supported upon the shaft of the same; rotary members having each oppositely located catch-teeth and being arranged in said wheels; and cam-disks so arranged as to be adapted to readjust said members; and means adapted to turn said, cam disk back into its initial position after the completion of every cycle of operations, substantially as set forth.

5. A shuttle change box mechanism for looms, comprising, in combination with the shuttle-boxes, rods connected with the shuttle-box cells, and rods connected with said first-mentioned rods; eccentrics located upon a common shaft and being arranged one within the other and adapted to support and re-adjust the rods mentioned in the second place; wheels connected with said eccen. tries and being supported upon the shaft of the same; rotary members having each oppositely located catch-teeth and being arranged in said wheels; and camdisks so arranged as to be adapted to re-adjust said members; a jacquard'device, a sinker, and a drive-plate, these parts being combined in such a manner that the combination is adapted to turn said cam disk in correspondence with the pattern of said jacquard device; and a spring so arranged as to be adapted to turn said cam disk back into its initial position after the completion of every cycle of operations, substantially as set forth.

6. A shuttle change-box mechanism for looms, comprising, in combination with the sliuttleboxes, rods connected with the shuttle-box cells, and rods connected with said first-mentioned rods; eccentrics located upon a common shaft and beingarranged one within the other and adapted to support and re-adjust the rods mentioned in the second place; wheels connected with said eccentrics and being supported upon the shaft of the same; rotary members having each oppositely located catch-teeth and being arranged in said wheels; and cam-disks so arranged as to be adapted to re-adjust' said members; and a cam-disk adapted to be turned alternately forward and rearward; a jacquard-device, a sinker, and a drive-plate, these parts being combined in such a manner that the combination is adapted to turn said cam disk in correspondence with the pattern of said jacquard-device; substantially as set forth.

7. A shuttle change-box mechanism for looms, comprising, in combination with the shuttle-boxes, rods connected with the shuttle-boX cells, and rods connected with said firstanentioned rods; eccentrics located upon a common shaft and being arranged one Within the other and adapt-ed to support and re-adjustthe rods mentioned in the second place; wheels connected with said eccentries and being supported upon the shaft of the same; rotary members having each oppositely located catch-teeth and being arranged in said wheels and cam-disks so arranged as to be adapted to re-adjust said members; and a cam-disk adapted to be turned alternately forward and rearward; a jacquard-device, a sinker, and a driveplate, these parts being combined in such a manner that the combination is adapted to turn said cam disk in correspondence with the pattern of said jacquard device; a feeler arranged to Contact with the rim of said lifting Wheel and to lift and lower alternately said drive-plate after every semi-rotation of the lifting Wheel and to cause itto Contact With said lifter only when another se1nir0tati0n of the lifting Wheel and another re-adjustnientof the box is to take place, substantially as set forth.

In testimony whereof I afiix my signatnre.

VVALTHER BOSHECK. 

